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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000008787409448 2,350 digits created 2026-05-03

Value

5054914645576564064105104171875182661548257639226226902968451537717095237748985744989797551348702862927029899679162948968940975103197427481898950548663748250646317454640380157584870488725980956616026137744146489717690990420603339769970812132384885342204387631579820478793608340601639301360792166426554282330301327551731852455353585265794362328451209176391925122248737221118534840568663627025916415644283284505427247603595322219183781999351927931429980105204483332595330699080741202264271272808068411298145176197793170033841757081832893473448702963702377401848810112972091874334053779628648125131839852613012650327596443213135346662744943717180298729698781301432247058504311853594973395628899036360891737515848354362250459533517450132456294563978150045507888599777416681153970061271192263180091495226234788624899895414698355551446289345523721373746287939681385771616243178646616728526022229791700524515842957994776450340337154447944136616685010291285515499247553074971551147861170624614576228603152416834507412463024212858124207987965272581714287107597058670743238283054056346191122895283398314266844020205181211647509198607387918866511784163334910121829686509361465918562188458155226394764905710298873921972173723807410894074291274840782312552681110563732304315858614320040513578542675442580038770662715962409877464533218587418887504330350686422237648710716624665742165956002475882004295620131510951581156129478057072554532449254746141628583769043439290526024821662078825445108919112850525499394523833847290537792024899089031196440447997986988294170753732398328642302020839561401173211335145918924290410080300525223012476510903070742487913732656287096001553622708387897607440446288135875064688252130264610106177194798814903292783208762503822060212417380754625870343291599391919818426452414901927566666078916043443605072375521249165661399404241308362161207775504416302743579377570619267603866183721197974633186673029235387102301267372902901575957583751451048278406723893260996688574084913811782761197131107793285515859377015434115613288054562596851705518388361237946805506544047443293042406379853135442855485312675511841263011786346510088092059604874814995415428671263907434521679358577580781406497548994478003606016327402677810432568231003464925953056123976817787136957124475399884451209562157436898113769203378203663524654973267258810002854614005207
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 58 of the certificate chain of a 3,261-digit prime (192 intermediate primes).

Certified number3,261-digit prime
Certificatedownload
Certificate chainshow step 58 of 192

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000008787409448 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000008787409448},"decimal":true,"detail":2}}'